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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 696 · 40 questions
TalentJR

How to think it through (Test every number): Check each number for a property: even/odd, prime (only two factors), square (4, 9, 16 …), or a multiple of 3, 4, 5 … 9. Find the property that three numbers share and one does not. Make sure no other property points at a different number — then that one is the odd one out.

NameDateTime takenScore ___ / 40
  1. 1.Which number is the odd one out: 42, 27, 99, 63? (a) 42 (b) 27 (c) 99 (d) 63
  2. 2.Which number is the odd one out: 84, 2, 43, 71? (a) 84 (b) 2 (c) 43 (d) 71
  3. 3.Which number is the odd one out: 6, 27, 9, 81? (a) 6 (b) 27 (c) 9 (d) 81
  4. 4.Which number is the odd one out: 32, 6, 44, 48? (a) 32 (b) 6 (c) 44 (d) 48
  5. 5.Which number is the odd one out: 2, 82, 53, 71? (a) 2 (b) 82 (c) 53 (d) 71
  6. 6.Which number is the odd one out: 98, 11, 14, 7? (a) 98 (b) 11 (c) 14 (d) 7
  7. 7.Which number is the odd one out: 83, 46, 59, 37? (a) 83 (b) 46 (c) 59 (d) 37
  8. 8.Which number is the odd one out: 64, 4, 13, 16? (a) 64 (b) 4 (c) 13 (d) 16
  9. 9.Which number is the odd one out: 66, 79, 12, 68? (a) 66 (b) 79 (c) 12 (d) 68
  10. 10.Which number is the odd one out: 67, 19, 32, 59? (a) 67 (b) 19 (c) 32 (d) 59
  11. 11.Which number is the odd one out: 11, 14, 88, 56? (a) 11 (b) 14 (c) 88 (d) 56
  12. 12.Which number is the odd one out: 67, 72, 97, 11? (a) 67 (b) 72 (c) 97 (d) 11
  13. 13.Which number is the odd one out: 50, 16, 64, 4? (a) 50 (b) 16 (c) 64 (d) 4
  14. 14.Which number is the odd one out: 24, 40, 20, 48? (a) 24 (b) 40 (c) 20 (d) 48
  15. 15.Which number is the odd one out: 30, 71, 11, 19? (a) 30 (b) 71 (c) 11 (d) 19
  16. 16.Which number is the odd one out: 54, 61, 18, 27? (a) 54 (b) 61 (c) 18 (d) 27
  17. 17.Which number is the odd one out: 6, 18, 15, 54? (a) 6 (b) 18 (c) 15 (d) 54
  18. 18.Which number is the odd one out: 22, 24, 96, 32? (a) 22 (b) 24 (c) 96 (d) 32
  19. 19.Which number is the odd one out: 51, 97, 41, 37? (a) 51 (b) 97 (c) 41 (d) 37
  20. 20.Which number is the odd one out: 50, 54, 65, 55? (a) 50 (b) 54 (c) 65 (d) 55
  21. 21.Which number is the odd one out: 4, 64, 42, 16? (a) 4 (b) 64 (c) 42 (d) 16
  22. 22.Which number is the odd one out: 5, 65, 43, 73? (a) 5 (b) 65 (c) 43 (d) 73
  23. 23.Which number is the odd one out: 55, 37, 23, 13? (a) 55 (b) 37 (c) 23 (d) 13
  24. 24.Which number is the odd one out: 35, 21, 78, 6? (a) 35 (b) 21 (c) 78 (d) 6
  25. 25.Which number is the odd one out: 17, 31, 8, 47? (a) 17 (b) 31 (c) 8 (d) 47
  26. 26.Which number is the odd one out: 45, 27, 99, 50? (a) 45 (b) 27 (c) 99 (d) 50
  27. 27.Which number is the odd one out: 29, 56, 67, 23? (a) 29 (b) 56 (c) 67 (d) 23
  28. 28.Which number is the odd one out: 54, 3, 41, 2? (a) 54 (b) 3 (c) 41 (d) 2
  29. 29.Which number is the odd one out: 6, 35, 96, 48? (a) 6 (b) 35 (c) 96 (d) 48
  30. 30.Which number is the odd one out: 60, 53, 29, 85? (a) 60 (b) 53 (c) 29 (d) 85
  31. 31.Which number is the odd one out: 43, 64, 19, 17? (a) 43 (b) 64 (c) 19 (d) 17
  32. 32.Which number is the odd one out: 93, 87, 29, 33? (a) 93 (b) 87 (c) 29 (d) 33
  33. 33.Which number is the odd one out: 54, 79, 2, 41? (a) 54 (b) 79 (c) 2 (d) 41
  34. 34.Which number is the odd one out: 83, 31, 42, 61? (a) 83 (b) 31 (c) 42 (d) 61
  35. 35.Which number is the odd one out: 59, 38, 23, 61? (a) 59 (b) 38 (c) 23 (d) 61
  36. 36.Which number is the odd one out: 55, 56, 15, 39? (a) 55 (b) 56 (c) 15 (d) 39
  37. 37.Which number is the odd one out: 30, 73, 71, 17? (a) 30 (b) 73 (c) 71 (d) 17
  38. 38.Which number is the odd one out: 13, 97, 7, 77? (a) 13 (b) 97 (c) 7 (d) 77
  39. 39.Which number is the odd one out: 9, 93, 81, 58? (a) 9 (b) 93 (c) 81 (d) 58
  40. 40.Which number is the odd one out: 60, 42, 70, 12? (a) 60 (b) 42 (c) 70 (d) 12

Answer key

  1. 42
  2. 84
  3. 6
  4. 6
  5. 82
  6. 11
  7. 46
  8. 13
  9. 79
  10. 32
  11. 11
  12. 72
  13. 50
  14. 20
  15. 30
  16. 61
  17. 15
  18. 22
  19. 51
  20. 54
  21. 42
  22. 65
  23. 55
  24. 35
  25. 8
  26. 50
  27. 56
  28. 54
  29. 35
  30. 60
  31. 64
  32. 29
  33. 54
  34. 42
  35. 38
  36. 56
  37. 30
  38. 77
  39. 58
  40. 70

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